The size of sediment is defined by the size of the particles that make up the sediment. The largest sediment size is called a boulder. Boulders have a diameter that is larger than 256 millimeters (about 10 inches). Cobbles are the next largest sediment, they are 64 - 256 mm in diameter (about 3-10 inches).
However, two days later, 75,000 Allied troops were trapped by the Japanese and forced to surrender. The next day, the Bataan Death March began. Of those who survived to reach the Japanese prison camp near Cabanatuan, few lived to celebrate U.S. General Douglas MacArthurâs liberation of Luzon in 1945.
History & Culture. The Bataan Death March was the forced march of American and Filipino prisoners of war by the Japanese during World War II. The 63-mile march began with 72,000* prisoners from the southern end of the Bataan Peninsula in the Philippines on April 9, 1942.